4X reduction in childhood Primary Nocturnal Enuresis by Vitamin D

A Novel Approach to the Management of Children with Primary Nocturnal Enuresis

Children (Basel) 2025 Aug 27;12(9):1128. doi: 10.3390/children12091128.

Buket Esen Agar 1, Metin Kaya Gurgoze 2, Aslihan Kara 1

Nocturnal enuresis was defined as repeated involuntary urination during sleep occurring at least twice per week in children aged 5 years or older.Monosymptomatic PNE was defined as enuresis persisting for more than six months during sleep in the absence of bladder dysfunction or lower urinary tract symptoms

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Nocturnal Enuresis significantly reduced by Vitamin D (2,400 IU daily for just 8 weeks) - RCT April 2026

Efficacy and Safety of High-Dose Vitamin D Supplementation Combined with an Enuresis Alarm vs Alarm Alone in Children with Primary Monosymptomatic Nocturnal Enuresis: A Randomized Clinical TrialJ Urol. 2026 Apr 29:101097JU0000000000005071. doi: 10.1097/JU.0000000000005071 PDF behind paywall

Zihan Ye 1 2 3 4 5 6 7 8, Xingguo Luo 1 2 3 4 5 6 7 8, Hongsong Chen 1 2 3 4 5 6 7 8, Qiang Zhang 1 2 3 4 5 6 7 8, Chang Li 1, Zhicheng Zhang 1 2 3 4 5 6 7 8, Shengde Wu 1 2 3 4 5 6 7 8, Deying Zhang 1 2 3 4 5 6 7 8, Yi Hua 1 2 3 4 5 6 7 8, Guanghui Wei 1 2 3 4 5 6 7 8, Xing Liu 1 2 3 4 5 6 7 8

Purpose: This study evaluated the efficacy and safety of high-dose vitamin D supplementation (VDS) combined with enuresis alarm (EA) therapy in children with primary monosymptomatic nocturnal enuresis (PMNE).

Materials and methods: A two-arm randomized clinical trial was conducted at a tertiary center in China between December 2024 and May 2025. Children with PMNE and serum 25-hydroxyvitamin D (25(OH)D) levels below 30 ng/mL were randomly assigned to receive either 8 weeks of VDS (vitamin D3 soft capsules, 2400 IU/day) plus EA (VDS + EA group) or EA (EA group). The primary outcome was treatment response. Secondary outcomes included change in weekly frequency of wet nights, quality-of-life (QoL) scores and treatment satisfaction. Safety was assessed by recording treatment-emergent adverse events (TEAEs).

Results: A total of 304 children were enrolled, of whom 262 (130 in the VDS + EA group and 132 in the EA group) were included in the final analysis. Compared with the EA group, the VDS + EA group showed higher response rates (RR 1.22; 95% CI 1.01-1.49; P = 0.04), complete response rates (RR 1.54; 95% CI 1.10-2.15; P = 0.01), a greater reduction in weekly wet nights (median difference, 1; 95% CI, 0-2; P = 0.003), and greater improvements in QoL and treatment satisfaction. No statistically significant difference in the risk of TEAEs was observed between groups.

Conclusions: High-dose VDS combined with EA was effective and well tolerated for treating PMNE in children, supporting its potential as a promising therapeutic approach.

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